Daily Practice

Higher

27th October 1953

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
2 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Capture Recapture3 marks
25 newts are marked and released. Later 56 are caught, of which 7 are marked. Estimate the population.
3
The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
4
Simultaneous Equations3 marks
3 teas and 3 cakes cost £12.75. 3 teas and 5 cakes cost £17.05. Find the price of a tea.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 8. Write y in terms of x.

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